package com.allwayz.service.impl;

import cn.hutool.core.util.IdUtil;
import com.allwayz.service.PaymentService;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @author allwayz
 */
@Service
public class PaymentServiceImpl implements PaymentService {
    @Override
    public String paymentInfoOK(Integer id) {
        return "Thread Pool：" + Thread.currentThread().getName() + "paymentInfoOK,id: " + id + "\t" + "OK";
    }

    @Override
    @HystrixCommand(fallbackMethod = "paymentInfoTimeoutHandler", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "3000")
    })
    public String paymentInfoTimeout(Integer id) {
        int timeNum = 5;
        try {
            TimeUnit.SECONDS.sleep(timeNum);
        }catch (InterruptedException e){
            e.printStackTrace();
        }
        return "Thread Pool：" + Thread.currentThread().getName() + "paymentInfoTimeout,id: " + id + "\t" + "timeout" + timeNum;
    }

    @Override
    public String paymentInfoTimeoutHandler(Integer id) {
        return "Thread Pool：" + Thread.currentThread().getName() + "    paymentInfoTimeoutHandler, id: " + id + "\t" + "timeout";
    }

    @Override
    @HystrixCommand(fallbackMethod = "paymentCircuitBreakerHandler",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),// 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),// 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {
        if(id < 0) {
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
    }

    @Override
    public String paymentCircuitBreakerHandler(@PathVariable("id") Integer id) {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }
}
